Combination-heater



(No Model.)

0. D. HOWARD. GOMBINATION HEATBR.

No. 498,057. Patented May 23, 1 893.

INVENTOB A HORNE).-

UNITED STATES PATENT OFFICE.

CHARLES D. HOWARD, OF SYRACUSE, NEW YORK;

COMBINATION-HEATER.

SPECIFICATION forming part of Letters Patent No. 498,0 57, dated May 23, 1893.

Application filed January 5, 1893.

To all whom it may concern;

Be it known that I, CHARLES D. HOWARD, a citizen of the United States, residing at Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Oombination-Heaters; and I do hereby declare the following to .be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. i

This invention relates to certain improvements in heaters, of the class known as combination heaters, wherein provision is made for two heating systems, respectively, a steam or hot-water circulating system and a hot-air system. In the heaters of this class, it has been usual to construct the furnace with a hot-air casing on the outside, and an internal heating coil or other form of boiler stationarily situated in the fire-box of the furnace.

In such construction it has been found impos-.

sible to so arrange the parts that the temperature, which the respective systems are intend-. ed to give, can be even approximately predetermined, and hence after they have been located and arranged for work,it is frequently necessary to re-arrange the parts, involving the necessity of virtually reconstructing some of the parts of the furnace.

My invention is designed to obviate these objections; and to this end it consists in providing such a furnace with an adjustable internal heater or water-box, through which the water for the steam or hot-water circulating system may be passed, and which may be readily inserted and removed from the furnace, and adjusted therein, as circumstances may require.

In the accompanying drawings, which form a part of this specification,Figure 1 represents a side elevation of a combination heater, with a part broken away, showing the location of the boiler or heater therein, and Fig. 2 is a detached View of the boiler or heater.

Referring to the drawings, like reference numerals indicate like parts throughout the respective views.

The numeral 1 indicates the outer shell of the furnace, and 2 the furnace proper, incased therein. These may be of the ordinary or any Serial No. 457.313. (No model.)

approved construction, wherein a hot-air heating space is leftbetween the furnace proper and the outer shell.

The numeral 3 indicates a collar to which is fitted the pipe for conducting the heated air from the hot-air chamber to an apartment or apartments to be heated.

The numeral 4: indicates the boiler or waterboX, which is to supply hot-water or steam to the wateror steam circulating system of the heater. The boiler may be of-any suitable shape, for convenienceof illustration I have shown it U-shape, and may be made of cast iron or other suitable material with properly arranged parts for the reception of the ends of connecting pipes 5 and 6, which connect respectively with a water supply by which water may be admitted under pressure, and with the radiators of a hot-water or steamheating system. These pipes extend verti-' and set screw 9, by means of which-the boiler or water-box is adjustably set into the firechamber of the furnace. The furnace, or firechamber thereof, is provided with the ordinary escape or eduction fine 10 leading to the chimney of the structure in which the furnace is to be located.

The numeral 11 indicates the outer shell or casing, and 12 the collar to receive the hot-air eduction pipe.

The operation of my invention will be readily understood in connection with the above description, and is as follows: The parts of the furnace being set to supply a specific or predetermined temperature to either system, if the hot water or steam boiler does not supply a properly heated current of hot-wateror steam, it may be raised or lowered so as to occupy a more or less effective place in the different zones or planes of the burning'fuel in the fire-chamber of the furnace. By this means of adjustment it will be observed that the hotwater or steam system of the furnace maybe arranged so that at all times a pre-determined temperature of the hot-water or steam system may be maintained at a higher or lower degree than that of the hot-air system.

It will be observed that the boiler or waterbox and pipes may bereadily and quickly rejustable boiler, capable of being' sehvwithin the fire-box of the furnace,in diiferentzones or parallel planes of the burning fuel, to regulate the heat supplied to the Water, substantially as specified.

2. The combination", in a furnace-embracing a hot air and a water or steam heating system, of the hot-air casing on theoutsi'd-e and the vertically adjustable boiler on the 8 inside, substantially as specified.

3, The; combination, in a furnace embracing a hot air anda water orsteam heating system, of the hot-air casing and the vertically adjustable boiler capable of being set,

within the fire-box of the furnace, in different zones or planes of the-burning fuel, substantially as specified.

4. In a furnace embracing two heating systems, the combination with an outer hot-air casing of a boiler, capable of being set in different zones or planes of the burning fuel,

iconsisting of a detachable section, vertically 1 movable connecting pipes and means for conjfini'ng said pipes in an-adjusted position,substantially as specified,

In testimony wh'ereofI do'a-fllx'my-signature in the'presence of twowitnesses;

CHARLES D. HOWARD; ll 'itnessesr H. M. SEAMANS, M; M. Now. 

